Pak

Build, inspect and promote artifacts with ease

Pak is a tool to generate build artifacts with custom metadata, that you can later promote.

Usage

You define your artifacts using a Pakfile.json that looks like this:

{
  "name": "ALPHA-ARTIFACT",
  "path": "./bin",
  "metadata": {
      "mantainer": "bronzdoc@mail.com",
      "BUILD_DATE": "${BUILD_DATE}"
    },

  "promote":{
    "rc":{
      "name": "RELEASE-ARTIFACT",
      "metadata": {
      "REL_DATE": "${BUILD_DATE}"
      }
    }
  }
}

pak can read environment variables so you can use them inside your Pakfile.json as ${VAR_NAME}

Build

$ export BUILD_DATE=$(date)
$ pak build

this will generate a .tar file named ALPHA-ARTIFACT.tar

Inspect

After you build an artifact using 'pak' you can inspect it's metadata with the inspect subcommand

$ pak inspect ALPHA-ARTIFACT.tar

{
  "build": {
    "metadata": {
      "BUILD_DATE": "lun dic  4 16:57:23 CST 2017",
      "mantainer": "bronzdoc@mail.com"
    },
    "name": "ALPHA-ARTIFACT"
  },
  "rc": {
    "metadata": {
      "REL_DATE": "${REL_DATE}"
    },
    "name": "RELEASE-ARTIFACT"
  }
}

You can pass the --key-value flag to the inspect subcommand to display the data in a key=value manner, i.e:

$ pak inspect --key-value ALPHA-ARTIFACT.tar

#build
  BUILD_DATE="lun dic  4 16:57:23 CST 2017"
  mantainer="bronzdoc@mail.com"
  name="ALPHA-ARTIFACT"
#rc
  REL_DATE="${REL_DATE}"
  name="RELEASE-ARTIFACT"

you can notice there is a build label that we didn't define, this is special and is the metadata pak created when you ran pak build.

You can access specific metadata if you pass to inspect the lable of the metadata you want to access, i.e:

$ pak inspect ALPHA-ARTIFACT.tar build

{
  "metadata": {
    "BUILD_DATE": "lun dic  4 16:57:23 CST 2017",
    "mantainer": "bronzdoc@mail.com"
  },
  "name": "ALPHA-ARTIFACT"
}

Promote

$ export REL_DATE=$(date)
$ pak promote ALPHA-ARTIFACT.tar rc

This will generate a new artifact named RELEASE-ARTIFACT.tar with the old metadata and the newone. Notice we passed the promote label we wanted the artifact to be promoted to, in this case this is rc.

If you inspect the new artifact you'll notice the artifact has the old and new metadata stored in it

$ pak inspect RELEASE-ARTIFACT.tar
{
  "build": {
    "metadata": {
      "BUILD_DATE": "lun dic  4 16:57:23 CST 2017",
      "mantainer": "bronzdoc@mail.com"
    },
    "name": "ALPHA-ARTIFACT"
  },
  "rc": {
    "metadata": {
      "REL_DATE": "mar dic  5 15:50:29 CST 2017",
    },
    "name": "RELEASE-ARTIFACT"
  }

Install

Binaries

bronzdoc/pak

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